OKLF-T/25-W12N Series www.murata-ps.com 90.75-Watt SMT Non-Isolated DC-DC Converter Typical unit FEATURES PPRODUCT OVERVIEWRODUCT OVERVIEW The OKLF-T/25-W12N is a 90.75-WThe OKLF-T/25-W12N is a 90 75-Waattt SMT t S the feedback loop to provide optimal transient iLGA inspectable Land Grid Array non-isolated DC-DC converter for embedded ap- response. It also makes adjustments to compen- Auto-compensation of feedback loop plications featuring auto-compensation and the sate for changes in output capacitance over time, Wide 6.5-14 VDC input range inspectable Land Grid Array (iLGA) format. The wide as capacitors age. input range is 6.5 to 14Vdc. The maximum current Applications include powering CPUs, datacom/ Non-isolated output adjustable from 0.6 to 3.3 is 25 Amps and the output is 0.6 to 3.3V, program- telecom systems, programmable logic, networking, Volts up to 25 Amps mable via an external resistor. telecommunications equipment, and intermediate Fast dynamic response This model features an ultra-fast dynamic regulated bus voltage applications. Sync function response of 30s (typical 3.3Vout). With auto- compensation, the converter automatically adjusts Power good output signal Outstanding thermal performance and derating Input undervoltage shutdown Short circuit protection Negative On/Off enable control High ef ciency at 94% (typ) Over temperature protection Remote sense Certi ed to UL/IEC 60950-1 safety approvals PG +Vin +Vout t 4XJUDIJOH F1 On/Off +Sense Control t JMUFST Controller Sense t VSSFOU 4FOTF R Load External Trim DC Power Reference and Open = On Source Error Amplier Closed = Off R Trim (On/Off) Common Common Sync Figure 1. Block Diagram Note: Murata Power Solutions strongly recommends an external input fuse, F1. See speci cations. For full details go to www.murata-ps.com/rohs www.murata-ps.com/support OKLF-T/25-W12N.A04 Page 1 of 18OKLF-T/25-W12N Series 90.75-Watt SMT Non-Isolated DC-DC Converter PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE Output Input Ef ciency Dimensions Model Number R/N (mV p-p) Regulation (max.) Vout Iout (Amps, Power Vin nom. Range Iin, no load Iin, full load inches (mm) (Volts) max.) (Watts) (Volts) (Volts) (mA) (Amps) Max. Line Load Min. Typ. 1.3 x 0.53 x 0.48 OKLF-T/25-W12N-C 0.6-3.3 25 90.75 25 0.3% 0.3% 12 6.5-14 120 8.045 92.5% 94% (33x 13.5 x12.2) All speci cations are at nominal line voltage, Vout=nominal and full load, +25C. unless otherwise noted. All Ripple and Noise (R/N) is shown at Vout=1V. See specs for details. models are tested and speci ed with external 1 F paralleled with 10 F ceramic output capacitors and a 22 F Ef ciency is shown for Vin nom, 3.3Vout. external input capacitor. All capacitors are low ESR types. * This product is To Be Discontinued. The Last Time Buy date is 3/31/2019. Please click here to view the Discontinuance Notice. PART NUMBER STRUCTURE OK L F-/T 25 - W12 N - C Non-isolated PoL RoHS Hazardous Substance Compliance C = RoHS-6 (does not claim EU RoHS exemption 7blead in solder) iLGA Surface Mount (MSL Rating 2) Ultra fast dynamic response (Transient load response) On/Off Logic N = Negative Logic Trimmable Output Voltage Range 0.6-3.3Vdc Note: Some model number combinations Input Voltage Range may not be available. See Ordering Guide 6.5-14Vdc above. Please contact Murata Power Solutions Maximum Rated Output for availability. Current in Amps Product Label Because of the small size of these products, the product label contains a Model Number Product Code character-reduced code to indicate the model number and manufacturing date OKLF-T/25-W12N-C F00125 code. Not all items on the label are always used. Please note that the label differs from the product photograph. Here is the layout of the label: The manufacturing date code is four characters: First character Last digit of manufacturing year, example 2009 XXXXXX Product code Mfg. Second character Month code (1 through 9 = Jan-Sep O, N, D = Oct, Nov, Dec) date YMDX Rev. Revision level code Third character Day code (1 through 9 = 1 to 9, 10 = 0 and 11 through 31 = A through Z) Figure 2. Label Artwork Layout Fourth character Manufacturing information The label contains three rows of information: First row Murata Power Solutions logo Second row Model number product code (see table) Third row Manufacturing date code and revision level www.murata-ps.com/support OKLF-T/25-W12N.A04 Page 2 of 18